NORTH AMERICAN HYMENOPTERA. 247 



Fig. 28. Hedychrum violaceum, tarsal claw. 

 " 29. " continuum, posterior view of the postscutellum, showing 



the following jninetured area. 



.30. Hedychridium dimidiatum, posterior view of the postscutellum. 

 ,31. •' " second and third abdominal segments. 



32. " " tarsal claw. 



33. '• caeruleum, posterior view of the postscutellum. 



34. Holopyga ventralis, tarsal claw. 



35. " horus. 



PLATE VIII. 

 Fig. 36. Chrysis verticalis, anterior view of head. 

 " 37. " " third abdominal segment. 



" 38. " inusitata, anterior view of head. 

 " 39. " optima, third abdominal segment, showing the prolongation 



of the fourth segment and the apex of the ovipositor. 

 " 40. Chrysis inusitata. 

 " 41. . •' hilaris, metathorax. 

 " 42. " tota, third abdominal segment. 

 " 43. " perpulchra, third abdominal segment. 

 •' 44. " densa, " " 



•' 45. " discreta, " " 



" 46. " parvula. lateral view of mesothorax, showing prolongation of 



postscutellum. 

 " 47. Chrysis parvula, third abdominal segment. 

 " 48. " scitula, " " 



•' 49. Parnopes Edwardsii. 



